Move rendering/RenderBox to layout/LayoutBox.

Source/core/html/canvas/WebGLRenderingContextBase.cpp

Index: Source/core/html/canvas/WebGLRenderingContextBase.cpp
diff --git a/Source/core/html/canvas/WebGLRenderingContextBase.cpp b/Source/core/html/canvas/WebGLRenderingContextBase.cpp
index ff91b873636196736812e4016430312b5662422a..412d0cbe6ef897dd3b5e2b90a76d516af0b06408 100644
--- a/Source/core/html/canvas/WebGLRenderingContextBase.cpp
+++ b/Source/core/html/canvas/WebGLRenderingContextBase.cpp
@@ -78,9 +78,9 @@
 #include "core/html/canvas/WebGLUniformLocation.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/inspector/InspectorInstrumentation.h"
+#include "core/layout/LayoutBox.h"
 #include "core/loader/FrameLoader.h"
 #include "core/loader/FrameLoaderClient.h"
-#include "core/rendering/RenderBox.h"
 #include "platform/CheckedInt.h"
 #include "platform/NotImplemented.h"
 #include "platform/RuntimeEnabledFeatures.h"
@@ -851,11 +851,11 @@ void WebGLRenderingContextBase::markContextChanged(ContentChangeType changeType)
 
     drawingBuffer()->markContentsChanged();
 
-    RenderBox* renderBox = canvas()->renderBox();
-    if (renderBox && renderBox->hasAcceleratedCompositing()) {
+    LayoutBox* layoutBox = canvas()->layoutBox();
+    if (layoutBox && layoutBox->hasAcceleratedCompositing()) {
         m_markedCanvasDirty = true;
         canvas()->clearCopiedImage();
-        renderBox->contentChanged(changeType);
+        layoutBox->contentChanged(changeType);
     } else {
         if (!m_markedCanvasDirty) {
             m_markedCanvasDirty = true;